Just in case anyone is interested in what happens when the folks in the RHB group survey/resurvey hills to check/change elevation data for their lists (in the UK), you might be interested in the following:
Yesterday Graham Jackson, Myrddyn Phillips and I in conjunction with BBC CountryFile and the OS surveyed Milk Hill and Tan Hill. We had already spent a day prior to this filming sorting out the highest point of each hill and taking our own GPS readings so we knew the result was not exactly as the latest 1:25000 OS maps suggest! The broadcast goes out at 7pm on BBC1 on Sunday 23rd August and will be the first piece on the programme. So if you want to know the highest point in Wiltshire you need to watch the programme.
73 Marc G0AZS